Rockland, Mass. — To replace large decommissioned or aging energy recovery ventilation (ERV) wheels, Airxchange FA Series field-assembled cassettes can reduce installation times and costs. Cassettes (wheels and frames) are factory-built, tested, marked for reassembly, and then disassembled for shipment. On-site assembly and installation are fast and easy, typically taking one day. Airxchange wheels recycle as much as 80 percent of heating and cooling energy contained in exhaust air, the company reports. Each cassette is precision cut into sections (typically halves or quarters) for delivery through standard doorways and rapid on-site assembly under the careful supervision of an Airxchange technician. Both wheel and frame materials are corrosion resistant, even in coastal environments, and every assembly carries a 5-year warranty. www.airxchange.com.